What is it in Edwards background that could justify such a vicious attack, that clearly has nothing at all to do with money?

Could it be this…

“In one of Edwards’ most famous cases, he won millions of dollars for the family of a nine-year-old girl whose internal organs had been sucked out of her by an un-shielded swimming pool drain. In another courtroom victory, Edwards’ client had suffered permanent brain damage after a doctor prescribed an incorrect dosage of medication.”